Rain and snow are the
main sources of fresh water for people living on earth. Both
rain and snow come from the clouds; but, where do the clouds
come from? It often seems that clouds appear from nowhere.
One minute the sky is clear and then a few minutes later clouds
form. Sometimes clouds come from far places. Wind moves the
clouds from one area to another.

If you live near a lake, ocean or
forest, you may have seen water vapors rising from wet surfaces and
disappearing in the air. Is it possible that the same vapors become
visible again when they get to higher elevations? If the clouds come from oceans, forests and other surface waters,
then why
doesn't the rain
water contain salt and other pollutants that exist in rivers
and surface waters?

Material and instructions:In this project you will study, observe
and demonstrate the water cycle. You must make a water cycle model to
demonstrate the effect of sunlight and temperature change in transferring
water from oceans and forests to other areas. Your project guide
includes different options for making a water cycle model. This
is a display project, so you will not have a results table or graph.

Details of
this project:
More information or support on this project is available for the
members of ScienceProject.com.